LXR linux/sound/pci/ac97/ac97

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4 *  Universal interface for Audio Codec '97
   5 *
   6 *  For more details look to AC '97 component specification revision 2.2
   7 *  by Intel Corporation (http://developer.intel.com).
   8 */
   9
  10#define AC97_SINGLE_VALUE(reg,shift,mask,invert) \
  11        ((reg) | ((shift) << 8) | ((shift) << 12) | ((mask) << 16) | \
  12         ((invert) << 24))
  13#define AC97_PAGE_SINGLE_VALUE(reg,shift,mask,invert,page) \
  14        (AC97_SINGLE_VALUE(reg,shift,mask,invert) | (1<<25) | ((page) << 26))
  15#define AC97_SINGLE(xname, reg, shift, mask, invert) \
  16{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  17  .info = snd_ac97_info_volsw,          \
  18  .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
  19  .private_value =  AC97_SINGLE_VALUE(reg, shift, mask, invert) }
  20#define AC97_PAGE_SINGLE(xname, reg, shift, mask, invert, page)         \
  21{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  22  .info = snd_ac97_info_volsw,          \
  23  .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
  24  .private_value =  AC97_PAGE_SINGLE_VALUE(reg, shift, mask, invert, page) }
  25#define AC97_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
  26{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
  27  .info = snd_ac97_info_volsw,          \
  28  .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
  29  .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
  30
  31/* enum control */
  32struct ac97_enum {
  33        unsigned char reg;
  34        unsigned char shift_l;
  35        unsigned char shift_r;
  36        unsigned short mask;
  37        const char * const *texts;
  38};
  39
  40#define AC97_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
  41{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
  42  .mask = xmask, .texts = xtexts }
  43#define AC97_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
  44        AC97_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
  45#define AC97_ENUM(xname, xenum) \
  46{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  47  .info = snd_ac97_info_enum_double,                \
  48  .get = snd_ac97_get_enum_double, .put = snd_ac97_put_enum_double, \
  49  .private_value = (unsigned long)&xenum }
  50
  51/* ac97_codec.c */
  52static const struct snd_kcontrol_new snd_ac97_controls_3d[];
  53static const struct snd_kcontrol_new snd_ac97_controls_spdif[];
  54static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
  55                                          struct snd_ac97 * ac97);
  56static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
  57                               struct snd_ctl_elem_info *uinfo);
  58static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
  59                              struct snd_ctl_elem_value *ucontrol);
  60static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
  61                              struct snd_ctl_elem_value *ucontrol);
  62static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit);
  63static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
  64                               const char *suffix);
  65static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
  66                               const char *dst, const char *suffix);
  67static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
  68                             const char *s2, const char *suffix);
  69static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
  70                                    const char *dst);
  71#ifdef CONFIG_PM
  72static void snd_ac97_restore_status(struct snd_ac97 *ac97);
  73static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
  74#endif
  75static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
  76                                     struct snd_ctl_elem_info *uinfo);
  77static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
  78                                    struct snd_ctl_elem_value *ucontrol);
  79static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
  80                                    struct snd_ctl_elem_value *ucontrol);
  81